ãã¾ã ã« Coq ãããããã£ã¦ã¾ãããï¼ãã¡ãã証æã¯ã§ããã¿ããã§ãï¼ ã§ãï¼ããããè¬ã ããã§ãâ¦ å ¨ç¶è¦å½éãã®ãã¨ããã¦ããã®ããããã¾ããã⦠$ ledit coqtop Welcome to Coq 8.0pl3 (Jan 2006) Coq P. DN is assumed (* æä¸å¾ EM ã証æ *) Coq P ============================ P \/ ~ P EM P ============================ ~ ~ (P \/ ~ P) EM P H : ~ (P \/ ~ P) ============================ False EM P H : ~ (P \/ ~ P) ============================ P \/ ~ P EM P H : ~ (P \/ ~ P) ====
{{#tags}}- {{label}}
{{/tags}}